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        General >> Problems >> O/D light flashing
        
(Message started by: mikesone on Jul 10th, 2010, 6:44pm)
Title: O/D light flashing
Post by mikesone on Jul 10th, 2010, 6:44pm
The o/d light starts to flash about 10 seconds after the engine starts. The only effect I notice is that it wont go into top gear, otherwise the engine runs ok, no wierd noises, 70mph at about 3000 revs. Have disconnected the maf sensor and nothing changes, so the maf is ok?
Any ideas?
Thanks,
Mike
Title: Re: O/D light flashing
Post by gozz on Jul 10th, 2010, 6:48pm
It,s telling you there is a fault,an OBD readout will clarify it.
                                         GOZZ.
Title: Re: O/D light flashing
Post by Highlander on Jul 10th, 2010, 7:01pm

on 07/10/10 at 18:44:08, mikesone wrote:
The o/d light starts to flash about 10 seconds after the engine starts. The only effect I notice is that it wont go into top gear, otherwise the engine runs ok, no wierd noises, 70mph at about 3000 revs. Have disconnected the maf sensor and nothing changes, so the maf is ok?
Any ideas?
Thanks,
Mike


If its not ok, unplugging it won't make any difference ;)

Is your speedo working ok?

could be a variety of causes, an OBD scan is needed as Gozz said

http://www.fordscorpio.co.uk/odlight.htm
Title: Re: O/D light flashing
Post by mikesone on Jul 10th, 2010, 8:33pm
ok, thanks, suppose Ford will charge an arm and a leg
Title: Re: O/D light flashing
Post by mikesone on Jul 10th, 2010, 8:35pm
P.S.  am I going to kill it if I run it with the light flashing?
Title: Re: O/D light flashing
Post by Matt on Jul 10th, 2010, 9:19pm
no, but u might not have 4th (overdrive) so any high speed driving will be in 3rd
Title: Re: O/D light flashing
Post by Mike H on Jul 10th, 2010, 9:50pm
Dunno, is it driveable? Does the gearbox work normally as far as you can tell?

Could also be a wiring problem, there's another page about that somewhere
Title: Re: O/D light flashing
Post by mikesone on Jul 11th, 2010, 12:44am
Yes, it drives well, speedo works normally, all I notice at the moment is no 4th gear
Title: Re: O/D light flashing
Post by mikesone on Jul 11th, 2010, 1:04am
before I buy a lead and software, is the Scorpio Ultima 24v  OBD2 compliant?
Apparently it's the system they use on the software........
Title: Re: O/D light flashing
Post by Simmo on Jul 11th, 2010, 7:50am
If you read This page (http://www.fordscorpio.co.uk/obdfaq.htm) it should answer your question. If you post your location,or put it in your profile, there may be a member nearby who could do a scan for you.
Title: Re: O/D light flashing
Post by gozz on Jul 11th, 2010, 12:24pm
You won't need to entertain the mighty Ford empire,any small garage needs an
OBD 2 scanner to be able to operate,and you should be able to grease the man's palm ;).
              GOZZ.
Title: Re: O/D light flashing
Post by budgie on Jul 11th, 2010, 3:32pm
just a thought but when my o/d light started to come on now and again it transpired it was my loom causing this which i then had to replace.
Title: Re: O/D light flashing
Post by mikesone on Jul 11th, 2010, 10:45pm
OK, I know a fairly friendly garage, will ask them.
Another thing I notice is it will do 70 at 3000 revs with no problem, but when I take my foot off, the revs drop immediately to just above tickover, but the car doesn't start to slow down as you would expect, it feels like it is coastng, but put your foot down and it picks up again.
I am in Birmingham
Title: Re: O/D light flashing
Post by Highlander on Jul 11th, 2010, 11:07pm
it is coasting, its on overrun, the injectors will be switched off and it wont be using fuel.

It should be slowing down though unless you have discovered perpetual motion ;)
Title: Re: O/D light flashing
Post by mikesone on Jul 12th, 2010, 11:43am
Yes, it does slow down, but not as quickly as usual when you take your foot off, like I said, it's coasting along as if it were in neutral
Title: Re: O/D light flashing
Post by Highlander on Jul 12th, 2010, 12:00pm
Sounds normal, the revs should drop to tickover and the car coast when you lift your foot
Title: Re: O/D light flashing
Post by Mike H on Jul 12th, 2010, 12:47pm
Must admit haven't taken much notice! ;D There's a one-way clutch for the O/D isn't there?



on 07/11/10 at 22:45:04, mikesone wrote:
Another thing I notice is it will do 70 at 3000 revs with no problem,


That sounds like O/D (4th gear). If were stuck in 3rd would be higher thasn that. Like if O/D is turned off (green button). (?)
Title: Re: O/D light flashing
Post by Mike H on Jul 12th, 2010, 12:52pm
That's a thought, is there a problem with the wiring for the green button in the transmission selector lever? So it's randomly & intermittently turned on and off?

Didn't someone else have a problem with a wire dropping off inside? Can't remember if it was same kind of symptoms though
Title: Re: O/D light flashing
Post by Highlander on Jul 12th, 2010, 1:49pm

on 07/12/10 at 12:47:59, Mike H wrote:
That sounds like O/D (4th gear). If were stuck in 3rd would be higher thasn that. Like if O/D is turned off (green button). (?)


No thats 3rd, 3000 rpm in 4th is a bit high ;)


on 07/12/10 at 12:52:36, Mike H wrote:
That's a thought, is there a problem with the wiring for the green button in the transmission selector lever? So it's randomly & intermittently turned on and off?

Didn't someone else have a problem with a wire dropping off inside? Can't remember if it was same kind of symptoms though


Possible but Mike has a constant flashing OD light rather than an intermittent one and it never goes into top gear.

The wire that came off just disabled the switch function with no other issues
Title: Re: O/D light flashing
Post by Danny_R on Jul 12th, 2010, 5:04pm
I had this very same problem, it turned out be one of the shift solenoids inside the tranny. OBD reader is the only way to know for sure. You'll probably find it's solenoid C thats gone bad or sticking. Sometimes a transmission flush and a new filter will sort it out.

Danny_R
Title: Re: O/D light flashing
Post by Mike H on Jul 13th, 2010, 2:07pm

on 07/12/10 at 13:49:51, Highlander wrote:
No thats 3rd, 3000 rpm in 4th is a bit high ;)

Oh right cos V6 is geared higher
Title: Re: O/D light flashing
Post by Highlander on Jul 13th, 2010, 2:26pm
a 24v should be sitting around 2500 RPM at 70 (dash reading) in top gear.

my 2.3 auto at 3000 RPM shows 80 mph

and the 2.0 16v will be just below 3000 RPM at 70
Title: Re: O/D light flashing
Post by mikesone on Jul 13th, 2010, 2:40pm
ok, have now got the lead off ebay, let's hope it works........
Title: Re: O/D light flashing
Post by Highlander on Jul 13th, 2010, 2:52pm
Hope so Mike :)

what one is it?

Matt's in Birmingham and I'm sure he's just dying to try out his new FDS 2000 if you get stuck ;)
Title: Re: O/D light flashing
Post by Mike H on Jul 13th, 2010, 3:07pm

on 07/13/10 at 14:26:46, Highlander wrote:
a 24v should be sitting around 2500 RPM at 70 (dash reading) in top gear.

my 2.3 auto at 3000 RPM shows 80 mph

and the 2.0 16v will be just below 3000 RPM at 70

Yep so 3,000 rpm for 70 mph in 3rd adds up for the first case.
Title: Re: O/D light flashing
Post by Highlander on Jul 13th, 2010, 3:11pm
you'll be sitting at around 90mph doing 3000 rpm in 4th
Title: Re: O/D light flashing
Post by Mike H on Jul 13th, 2010, 3:21pm
I'll take your word for it! ;D

Only in theory of course officer


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